Kia ora, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.14%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3227 days | 97% |
| Natasha Startup | 9/10 | 3259 days | 100% |
| Andy | 9/10 | 3264 days | 100% |
| Toby | 10/10 | 3270 days | 100% |
| Micha Kuster | 10/10 | 3328 days | 95% |
| Tim | 8/10 | 3344 days | 91% |
| Jendrik | 8/10 | 3344 days | 91% |
| Alice Frater | 7/10 | 3351 days | 86% |
| Jade Williams | 10/10 | 3364 days | 91% |
| Cora | 9/10 | 3605 days | 69% |
| Lauren Dinnage | 10/10 | 3613 days | 69% |
| Mike Munzenmaier | 9/10 | 3620 days | 67% |
| Matt Irwin | 8/10 | 3623 days | 66% |
| Annalies Beard | 8/10 | 3623 days | 66% |
| Laura Schafer | 9/10 | 3631 days | 66% |
| D Davey | 10/10 | 3640 days | 66% |
| Kirsten Gehrenbeck | 6/10 | 3642 days | 57% |
| Lucile Souday | 10/10 | 3651 days | 65% |
| Lisa Kalkert | 10/10 | 3652 days | 65% |
| David | 10/10 | 3652 days | 65% |
| Philip Piel | 9/10 | 3652 days | 64% |
| Miro | 6/10 | 3652 days | 56% |
| Chiara | 9/10 | 3652 days | 64% |
| Sabine Bergen | 9/10 | 3655 days | 64% |
| Annika Locker | 10/10 | 3658 days | 65% |
| Jess | 8/10 | 3689 days | 60% |
| Lilli Erni | 9/10 | 4322 days | 4% |
| Franz Birkefeld | 9/10 | 4323 days | 4% |
| Laina Black | 7/10 | 4343 days | 2% |
| Ricky White | 9/10 | 4343 days | 2% |
| Jennifer Garner | 9/10 | 4357 days | 1% |
| Philip Donachie | 10/10 | 4360 days | 0% |
| Klaus Petersen | 7/10 | 4362 days | 0% |
| Matthew Trezise | 10/10 | 4363 days | 0% |
| Lorraine Doyle | 10/10 | 4695 days | 45% |
| Lisa Blake | 9/10 | 4815 days | 45% |
| Jenben | 10/10 | 4829 days | 45% |
| David | 7/10 | 4829 days | 42% |
| Nikita Sue | 8/10 | 5096 days | 44% |
| Darren Ronchetti | 10/10 | 5099 days | 45% |
| Asha | 9/10 | 5134 days | 45% |
| Helen & Laurence | 9/10 | 5172 days | 45% |
| kirribilliangel | 10/10 | 5256 days | 45% |
| Dave van Bergen | 9/10 | 5404 days | 45% |
| Guult Ryan | 10/10 | 5426 days | 45% |
| Claire Colquhoun | 8/10 | 5427 days | 44% |
| Andy Johnson | 10/10 | 5431 days | 45% |
| Leanne Shepherd | 8/10 | 5432 days | 44% |
| Chris White | 10/10 | 5447 days | 45% |
| Jane & Regis | 7/10 | 5456 days | 42% |
| Invictus | 8/10 | 5621 days | 44% |
| craigy | 7/10 | 5652 days | 42% |
| Rob | 8/10 | 5722 days | 44% |
| David | 7/10 | 5738 days | 42% |
| Alzbeta Czech | 10/10 | 5819 days | 45% |
| Becky | 8/10 | 5826 days | 44% |
| Amer | 9/10 | 5830 days | 45% |
| Greg Gerritz | 8/10 | 5832 days | 44% |
| Chance McGuire | 10/10 | 5833 days | 45% |
| Hailey & Fin | 8/10 | 5845 days | 44% |
| pedawrds | 10/10 | 5884 days | 45% |
| thomash | 10/10 | 5889 days | 45% |
| asiacritics | 7/10 | 5895 days | 42% |
| Bue Verrept | 8/10 | 5902 days | 44% |
| canadianislandgirl | 7/10 | 5925 days | 42% |
| Ash Sturm | 9/10 | 5925 days | 45% |
| wileyman | 9/10 | 5956 days | 45% |
| clairet | 9/10 | 6004 days | 45% |
| ToryL | 9/10 | 6017 days | 45% |
| muriellef | 7/10 | 6021 days | 42% |
| katesh | 10/10 | 6094 days | 45% |
| caroldarren | 10/10 | 6139 days | 45% |
| Jake1 | 9/10 | 6141 days | 45% |
| HanT | 8/10 | 6148 days | 44% |
| Yvanna | 8/10 | 6158 days | 44% |
| EmmaL | 8/10 | 6172 days | 44% |
| AnthonyB1 | 8/10 | 6173 days | 44% |
| kiwibrit86 | 9/10 | 6182 days | 45% |
| Matt | 10/10 | 6188 days | 45% |
| SuenSwitzerland | 9/10 | 6198 days | 45% |
| Carolyn | 9/10 | 6201 days | 45% |
| Marcus | 8/10 | 6201 days | 44% |
| Kirsty | 10/10 | 6202 days | 45% |
| Fam | 9/10 | 6207 days | 45% |
| Hayley | 8/10 | 6213 days | 44% |
| Debbie Mossman | 9/10 | 6213 days | 45% |
| Alan | 8/10 | 6217 days | 44% |
| Claire | 10/10 | 6224 days | 45% |
| Spyfox | 10/10 | 6245 days | 45% |
| Sonja | 9/10 | 6252 days | 45% |
| Tim | 8/10 | 6259 days | 44% |
| Lorri S | 8/10 | 6263 days | 44% |
| lming60 | 10/10 | 6264 days | 45% |
| melissa | 10/10 | 6264 days | 45% |
| Vincent | 9/10 | 6269 days | 45% |
| Hanna | 5/10 | 6284 days | 34% |
| Henry | 8/10 | 6306 days | 44% |
| Laura | 9/10 | 6322 days | 45% |
| Dave | 9/10 | 6329 days | 45% |
| Anna | 8/10 | 6336 days | 44% |
| S D | 9/10 | 6353 days | 45% |
| Alex Paice | 9/10 | 6363 days | 45% |
| Nikki Gray | 9/10 | 6389 days | 45% |
| Kellie Teichmann | 10/10 | 6439 days | 45% |
| L1z4rd | 9/10 | 6458 days | 45% |
| Allie61 | 10/10 | 6504 days | 45% |
| Adam Richards | 9/10 | 6519 days | 45% |
| Nick | 9/10 | 6525 days | 45% |
| Andria Davis | 9/10 | 6532 days | 45% |
| Georgina Mulligan | 9/10 | 6532 days | 45% |
| catzmagic | 9/10 | 6532 days | 45% |
| Emily Houston | 7/10 | 6536 days | 42% |
| Nancy Dol | 8/10 | 6536 days | 44% |
| John Woodrow | 9/10 | 6540 days | 45% |
| Zara | 10/10 | 6548 days | 45% |
| Ed | 6/10 | 6548 days | 39% |
| Elle | 10/10 | 6548 days | 45% |
| Issy | 7/10 | 6548 days | 42% |
| Katharina | 10/10 | 6551 days | 45% |
| Juliet | 9/10 | 6552 days | 45% |
| paulonline | 10/10 | 6554 days | 45% |
| Marc Hertogs | 7/10 | 6555 days | 42% |
| Ash McNeil | 10/10 | 6555 days | 45% |
| Warren | 8/10 | 6579 days | 44% |
| Klaus | 9/10 | 6587 days | 45% |
| Ann Westmacott | 9/10 | 6613 days | 45% |
| Neil Cooke | 8/10 | 6621 days | 44% |
| Archie Murdoch | 8/10 | 6628 days | 44% |
| Orla | 8/10 | 6629 days | 44% |
| Andy Chapman | 8/10 | 6741 days | 44% |
| JanKovar | 7/10 | 6857 days | 42% |
| Magnus | 8/10 | 6869 days | 44% |
| Lorraine | 8/10 | 6875 days | 44% |
| Dan | 9/10 | 6880 days | 45% |
| Sarah | 8/10 | 6880 days | 44% |
| Richhouse | 8/10 | 6885 days | 44% |
| Emma Gareth | 9/10 | 6891 days | 45% |
| Karen Nellist | 10/10 | 6894 days | 45% |
| beesom | 9/10 | 6905 days | 45% |
| Janne | 7/10 | 6909 days | 42% |
| Frauke | 4/10 | 6911 days | 29% |
| Dave | 10/10 | 6916 days | 45% |
| RosalindBoyes | 7/10 | 6916 days | 42% |
| Hanna | 8/10 | 6917 days | 44% |
| LisaAllen | 10/10 | 6930 days | 45% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.11% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.04% |
| 198 | -4.07% |
| 199 | -4.09% |
| 200 | -4.11% |
| 201 | -4.13% |
| 202 | -4.15% |
| 203 | -4.17% |
| … | … |
Balancing Adjustment
2.24% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
85%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.